212221000122212 has 12 divisors (see below), whose sum is σ = 375063846751356. Its totient is φ = 105059901050400.

The previous prime is 212221000122151. The next prime is 212221000122247.

212221000122212 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 108116199635236 + 104104800486976 = 10397894^2 + 10203176^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262649752223 + ... + 262649753030.

It is an arithmetic number, because the mean of its divisors is an integer number (31255320562613).

Almost surely, 2^{212221000122212} is an apocalyptic number.

It is an amenable number.

212221000122212 is a deficient number, since it is larger than the sum of its proper divisors (162842846629144).

212221000122212 is a wasteful number, since it uses less digits than its factorization.

212221000122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525299505358 (or 525299505356 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

It can be divided in two parts, 212221000 and 122212, that added together give a palindrome (212343212).

The spelling of 212221000122212 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred twenty-two thousand, two hundred twelve".